return self._resolve_filepath(filepath)
+ class CloudFilesStorage(StorageInterface):
+ def __init__(self, **kwargs):
+ self.param_container = kwargs.get('cloudfiles_container')
+ self.param_user = kwargs.get('cloudfiles_user')
+ self.param_api_key = kwargs.get('cloudfiles_api_key')
+ self.param_host = kwargs.get('cloudfiles_host')
+ self.param_use_servicenet = kwargs.get('cloudfiles_use_servicenet')
+
+ if not self.param_host:
+ print('No CloudFiles host URL specified, '
+ 'defaulting to Rackspace US')
+
+ self.connection = cloudfiles.get_connection(
+ username=self.param_user,
+ api_key=self.param_api_key,
+ servicenet=True if self.param_use_servicenet == 'true' or \
+ self.param_use_servicenet == True else False)
+
+ if not self.param_container == \
+ self.connection.get_container(self.param_container):
+ self.container = self.connection.create_container(
+ self.param_container)
+ self.container.make_public(
+ ttl=60 * 60 * 2)
+ else:
+ self.container = self.connection.get_container(
+ self.param_container)
+
+ def _resolve_filepath(self, filepath):
+ return '/'.join(
+ clean_listy_filepath(filepath))
+
+ def file_exists(self, filepath):
+ try:
+ object = self.container.get_object(
+ self._resolve_filepath(filepath))
+ return True
+ except cloudfiles.errors.NoSuchObject:
+ return False
+
+ def get_file(self, filepath, mode='r'):
+ try:
+ obj = self.container.get_object(
+ self._resolve_filepath(filepath))
+ except cloudfiles.errors.NoSuchObject:
+ obj = self.container.create_object(
+ self._resolve_filepath(filepath))
+
+ return obj
+
+ def delete_file(self, filepath):
+ # TODO: Also delete unused directories if empty (safely, with
+ # checks to avoid race conditions).
+ self.container.delete_object(filepath)
+
+ def file_url(self, filepath):
+ return self.get_file(filepath).public_uri()
+
+
+class MountStorage(StorageInterface):
+ def __init__(self, **kwargs):
+ self.mounttab = {}
+
+ def mount(self, dirpath, backend):
+ """
+ Mount a new backend under dirpath
+ """
+ new_ent = clean_listy_filepath(dirpath)
+
+ print "Mounting:", repr(new_ent)
+ already, rem_1, table, rem_2 = self._resolve_to_backend(new_ent, True)
+ print "===", repr(already), repr(rem_1), repr(rem_2)
+
+ assert (already is None) or (len(rem_2) > 0), "Already mounted"
+ for part in rem_2:
+ table[part] = {}
+ table = table[part]
+ assert not table.has_key(None), "Huh? Already mounted?!"
+ table[None] = backend
+
+ def _resolve_to_backend(self, filepath, extra_info = False):
+ """
+ extra_info = True is for internal use!
+
+ Normally, returns the backend and the filepath inside that backend.
+
+ With extra_info = True it returns the last directory node and the
+ remaining filepath from there in addition.
+ """
+ table = self.mounttab
+ filepath = filepath[:]
+ res_fp = None
+ while True:
+ new_be = table.get(None)
+ if (new_be is not None) or res_fp is None:
+ res_be = new_be
+ res_fp = filepath[:]
+ res_extra = (table, filepath[:])
+ # print "... New res: %r, %r, %r" % (res_be, res_fp, res_extra)
+ if len(filepath) == 0:
+ break
+ query = filepath.pop(0)
+ entry = table.get(query)
+ if entry is not None:
+ table = entry
+ res_extra = (table, filepath[:])
+ else:
+ break
+ if extra_info:
+ return (res_be, res_fp) + res_extra
+ else:
+ return (res_be, res_fp)
+
+ def resolve_to_backend(self, filepath):
+ backend, filepath = self._resolve_to_backend(filepath)
+ if backend is None:
+ raise Error("Path not mounted")
+ return backend, filepath
+
+ def __repr__(self, table = None, indent = []):
+ res = []
+ if table is None:
+ res.append("MountStorage<")
+ table = self.mounttab
+ v = table.get(None)
+ if v:
+ res.append(" " * len(indent) + repr(indent) + ": " + repr(v))
+ for k, v in table.iteritems():
+ if k == None:
+ continue
+ res.append(" " * len(indent) + repr(k) + ":")
+ res += self.__repr__(v, indent + [k])
+ if table is self.mounttab:
+ res.append(">")
+ return "\n".join(res)
+ else:
+ return res
+
+ def file_exists(self, filepath):
+ backend, filepath = self.resolve_to_backend(filepath)
+ return backend.file_exists(filepath)
+
+ def get_file(self, filepath, mode='r'):
+ backend, filepath = self.resolve_to_backend(filepath)
+ return backend.get_file(filepath, mode)
+
+ def delete_file(self, filepath):
+ backend, filepath = self.resolve_to_backend(filepath)
+ return backend.delete_file(filepath)
+
+ def file_url(self, filepath):
+ backend, filepath = self.resolve_to_backend(filepath)
+ return backend.file_url(filepath)
+
+ def get_local_path(self, filepath):
+ backend, filepath = self.resolve_to_backend(filepath)
+ return backend.get_local_path(filepath)
+
+ def copy_locally(self, filepath, dest_path):
+ """
+ Need to override copy_locally, because the local_storage
+ attribute is not correct.
+ """
+ backend, filepath = self.resolve_to_backend(filepath)
+ backend.copy_locally(filepath, dest_path)
+
+
###########
# Utilities
###########
projects / mediagoblin.git / commitdiff